• 제목/요약/키워드: NATURAL VEGETATION

검색결과 1,021건 처리시간 0.03초

칠갑산의 식생 (Vegetation of Mt. Chil-gab)

  • Koh, Jae Kee;Yang-Jai Yim
    • The Korean Journal of Ecology
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    • 제10권1호
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    • pp.33-42
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    • 1987
  • The forest vegetation of Mt. Chil-gab was studied from 1983 to 1984. By Z-M method, the actual vegetation was classified into 8 communities and 1 plantation; Quercus variabilis, Q. variabilis-Styrax obassia, Q variabilis-Q. dentata, Q. varisbilid-Q. mongolica, Q. acutissima-Q. variabilis, Zelkova serrata-Styrax japonica, Capinus laxiflora, Pinus densiflora community and Larix leptolepts plantation (on the mountain foot) community. The plant communities of Q. variabilis and S. japonica as edaphic climax, in terms of the isopleth line of warmth index. Based on the data of vegetation survey and environmental analysis, the actual vegetation map and potential natural vegetation map were perpared with scale of 1/25, 000.

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ECOLOGICAL RESPONSE OF STREAMS IN KOREA UNDER DIFFERENT MANAGEMENT REGIMES

  • Lee Chang-Seok;Cho Yong-Chan;Shin Hyun-Cheol;Moon Jeong-Suk;Lee Byung-Cheon;Bae Yang-Seop;Byun Hwa-Geun;Yi Hoon-Bok
    • Water Engineering Research
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    • 제6권3호
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    • pp.131-147
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    • 2005
  • Today, a trend that tries to return the artificial space of a river to a natural one is expanding. But in Korea, which lies in the monsoon climate zone, rivers endure flood damage every year. Moreover, climatic change from global warming causes severe variations in precipitation patterns. Until recently, river restoration practices in Korea have followed partial restoration. These restorative treatments transformed artificial structures of the stream to natural ones and introduced natural vegetation by imitating natural or semi-natural streams. Treatment transformed the riparian structure and increased the diversity of micro-topography and vegetation. Furthermore, restoration recovered species composition, increased species diversity, and inhibited the establishment of exotic species. In particular, the Suip stream, which was left to its natural process for approximately 50 years, recovered its natural features almost completely through passive restoration. An urban stream, the Yangjae, and a rural stream, the Dongmoon, were restored partially by applying ecological principles. On the contrary, technological treatment applied to recover flood damage induced species composition far from the natural vegetation and decreased species diversity. Additionally, this treatment increased exotic species. The same results were found also in benthic invertebrate and fish fauna. The above-mentioned results reflect the importance of ecological considerations in river management.

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월악산국립공원 용하구곡의 식생구조 및 관리방안 (Vegetation Structure and Management Planning of Yongha Gugok in Woraksan National Park)

  • 백승준;강현경;김선화
    • 한국환경생태학회지
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    • 제27권4호
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    • pp.487-497
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    • 2013
  • 본 연구는 월악산국립공원 용하계곡을 대상으로 용하구곡 시문에 내재되어 있는 식생경관 요소를 도출하고, 현존식생, 식물군집구조를 조사하여 식생구조를 파악, 국립공원 내 구곡경관의 유지 및 개선을 위한 식생 관리방안을 제시하고자 하였다. 시문을 통하여 자연경관요소를 도출한 결과, 너럭바위, 자연첩석, 맑은 물, 밝은 돌, 시냇물, 골짜기, 폭포, 소나무, 당단풍으로 나타났으며, 주요 식생경관 요소로서 소나무와 당단풍으로 도출되었다. 현존식생 조사 결과, 자연식생은 67.5%로 소나무군집, 굴참나무군집, 굴참나무-소나무군집, 굴참나무-졸참나무군집, 졸참나무군집, 신갈나무군집, 신갈나무-소나무군집, 낙엽활엽수군집으로 분류되었다. 인공식생(18.7%)은 졸참나무-일본잎갈나무군집, 신갈나무-밤나무군집, 일본잎갈나무군집, 일본잎갈나무-밤나무군집, 관목림, 일본잎갈나무-신갈나무군집이 분류되었으며, 초지지역(2.0%)은 참억새군집, 갈대군집, 기타지역(11.9%)은 조경수식재지, 밭, 과수원, 주거지역으로 구분되었다. 용하구곡의 대표식생은 소나무군집, 굴참나무-졸참나무군집, 일본잎갈나무군집, 낙엽활엽수군집이었으며 Shannon의 종다양도는 전체적으로 0.6274~0.9908이었다. 용하구곡은 도통계승과 자연애의 표상이며, 조선말과 일제강점기의 위정척사사상이 담겨있는 청정지역으로 자연성이 높은 계곡경관의 보전이 이루어져야 한다. 이와 같은 역사 문화적 구곡의 식생경관 관리방안을 위하여 소나무군집은 경관유지, 일본잎갈나무군집은 자연천이 유도를 위한 밀도관리가 필요하며, 자연재해 및 인위적 훼손시, 계곡부 식생복원을 위하여 역사 문화적 식생경관인 소나무 중심의 식생복원계획이 적용되어져야 할 것으로 사료되었다.

산림식생유형에 따른 조류 종다양성 분석 (Bird Species Diversity Analysis According to the Type of Forest Vegetation)

  • 박인환;김유훈;조광진
    • 한국환경복원기술학회지
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    • 제15권6호
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    • pp.43-52
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    • 2012
  • For this paper, a study targeting 9 forest patches in Dangjin to suggest for the wild birds, was conducted. The correlation between the emergence of wild birds and the forest vegetation was analyzed, and the patterns of forest vegetation for the improvement of species diversity were suggested by classifying wild birds and foraging guild by the type of forest vegetation. As for the characteristics of the wild birds emerged, more species and bigger population appeared in the vegetation type of mixed stand forest where the natural deciduous broadleaf trees and evergreen needleleaf trees coexisted in the large scale vegetation area. Thus, it was known that the advent of summer migratory birds and resident birds were affected the most by forest patches and vegetation types. As for foraging guild, the larger the forest paches the more the species and the population of the wild birds inhabiting in shrubs and bushes.

Analysis of Some Desert Ecosystems Vegetation in Abu Dhabi Emirate, United Arab Emirates. Effect of Land Use

  • Mousa, Mohamed Taher;Ksiksi, Taoufik Salah
    • Journal of Forest and Environmental Science
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    • 제25권1호
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    • pp.49-55
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    • 2009
  • The present study analyses the effect of land use on the vegetation of some desert ecosystems in Abu Dhabi, United Arab Emirates (UAE). Three sites were selected to represent different types of land use, inside Umm Al-Banadeq forest, outside the forest and along Abu Dhabi-Al Ain Trucks Road. In total, fifty-two stands were examined; including a matrix of 14 species ${\times}$ 52 stands. Based on species cover data, stands were classified using TWINSPAN and ordinated using DCA. Four vegetation groups were generated at level three of classification. Zygophyllum mandavillei was dominant in most vegetation groups; Heliotropium bacciferum dominated vegetation groups inhabited the forest. Species richness, species turnover, relative evenness and relative concentration of dominance of forest vegetation groups were 2.8, 5.7, 0.7, and 2.0, respectively. The differences were attributed to both natural variability and forestry-induced changes, including change in land use, drainage and ploughing and shading by trees. Vegetation group inhabited Abu Dhabi-Al Ain Trucks Road, that were dominated by Haloxylon salicornicum and Zygophyllum mandavillei have high total cover (8.8 m per $m^{-1}$). Most community and vegetation attributes were significantly higher inside the forest than outside. Human interventions and environmental factors affected species diversity and abundance of these communities.

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식생/모래기반 자연해빈에서의 지하수위 변동특성 (Variation Characteristics of the Groundwater Level of Natural Vegetation and Sandy Beaches)

  • 박정현;윤한삼
    • 한국해양환경ㆍ에너지학회지
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    • 제19권1호
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    • pp.62-73
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    • 2016
  • 식생/모래기반 자연해빈에서의 파랑, 조석, 강우조건에 의한 지하수위 변동은 식생 환경과 밀접한 관련이 있으며 이는 식생 발달 및 지반 안정화에 크게 영향을 주는 요소이다. 본 연구는 낙동강 하구역의 사주섬 중 최서측에 위치하는 진우도를 대상으로 실험구를 구축한 후 해안선의 법선 방향으로 관측점 5곳을 선정하여 2012년 3월부터 2014년 9월까지(약 799일간) 관측된 수온, 전기전도도, 압력값을 이용하여 지하수위 변동해석을 하였다. 지하수위의 수온, 염분, 수위 변동과 조위, 파랑, 강수량 등의 외력조건과의 시계열 분석 및 상관분석을 통하여, 소상대 정점에서는 파랑 및 조위의 영향, 식생 및 모래지반 정점에서는 강수량 및 조위의 영향을 크게 받음을 알 수 있었다. 고파랑 내습시 관측점간의 지하수위 및 전기전도도의 공간적 거동을 살펴본 결과 Sand dune 및 Vegetation zone이 시작되는 인근에서 담수층과 해수층의 천이 영역(Transition zone)이 존재하였다.

금정산성 주변 식생의 생태적 특성과 복원방안 (Restoration Plan and Ecological Characteristics of Vegetation in the Area Adjacent to GeumJeong Mountain Fortress)

  • 김석규
    • 환경영향평가
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    • 제19권3호
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    • pp.231-245
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    • 2010
  • The the purpose of this study was to analyze of the vegetation structure and phytosociological changes in the area adjacent to GeumJeong Mountain Fortress for fifteen years. The result of this study was as follows; Of the 8 quadrates, site of the North Gate 2 was having a highest in the number of extinct trees, 15 kinds. This is probably due to trampling effect caused by climbers' steps. Site of the West Gate 1 and South gate 1 each had 8 kinds of extinct trees, respectively. The number of newly appeared trees was highest at site of the North Gate 1, (8 kinds) followed by the sites of South gate 1 and South gate 2, respectively (5 kinds). The highest decrease in number of tree species was observed in North Gate 1, therefore, there is a strong relationship between vegetation diversity and the number of users of the available spaces. In order to revitalize the unstable vegetation structure of the Area Adjacent to GeumJeong Mountain Fortress, Robinia pseudo-acacia has to be well maintained in the shrub tree layer, and vines, such as Smilax china, Humulus japonicus, and Pueraria thungergiana, should be removed. To recover natural vegetation, dead leaf layer should be protected, and more shrub trees need to be planted. In the understory and shrub tree layer, multi layer tree planting is highly recommended to recover natural vegetation and increase tree diversity. In order to improve bad soil condition caused by trampling effect of recreational users, special treatments to the soil structure are required, such as mulching and raking soil. Also, depending on its soil damage from users trampling, the areas in the park should be divided into usable areas and user limited areas by the sabbatical year system. To improve the soil acidity due to acidic rain, soil buffering ability should be improved by activating microorganisms in the soil by using lime and organic material.

하천에 있어서 자연성의 보전, 정비, 창출에 관한 연구 II - 원성천과 풍서천의 하천식생구조를 대상으로 - (A Study on the Conservation Rehabilitation and Creation of Naturalilty of Rivers - River Vegetation Structure of Wonsungcheon and Pungseocheon)

  • 방광자;이진희;설종호;강현경;박성은
    • 환경영향평가
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    • 제7권2호
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    • pp.53-64
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    • 1998
  • This study was performed to build up the ecological guidelines to grasp the structure of the vegetation change which is due to river rehabilitation. Anyway, river ecosystem and function has been destroyed owing to river development. It is important that river vegetation supplies ecological corridor and biotope. Two survey sites(Wonsungcheon and Pungseocheon)were investigated in the aspect of plant ecosystem and structure to settle the practical concept of river ecosystem. Each survey site was subdivided to five plots. The site was surveyed through the belttransect method. Wonsungcheon gets more seriously polluted as it runs to the urban area. In other words, there are On the other hand, Pungseocheon has more naturality but its downstream is under the pressure of various wood plants in the upstream area, but downstream area is dominated by naturalized plants such as Bidens frondosa, Panicum dichotomiflorum, etc. Riverbank of downstream has been changed into farm and parking lot. development. It should be preserved definitely because it still has abundant naturality and wetland which formed a biotope. The objective of the research is to find out the river retrogression and maintenance methods based on the riparian vegetation structure. To manage the river ecologically, hydrophytes should be induced partly for natural purification after the riverside is rehabilitated. The vegetation should be induced step by step to restore natural river and steady monitoring and research are required.

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백두대간 자연생태계의 지역구분을 위한 식생지수에 관한 연구 -남덕유산 -소사고개 구간- (A Study on Vegetation Index for Zoning of Natural Ecosystem on Baekdudaegan -From Namdeogyusan to Sosagogae-)

  • 김갑태;엄태원
    • 한국환경생태학회지
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    • 제18권2호
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    • pp.158-166
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    • 2004
  • 자연생태계의 보전을 위한 지역구분을 위하여 백두대간(남덕유산-소사고개) 구간을 조사한 식생조사 자료를 바탕으로 식생의 보전가치를 식생지수라는 것으로 수치화 하는 방법을 제시해 보고자 한다. 식생지수는 생물다양성, 임분의 보전가치, 환경의 청정성, 임분의 역사성, 입지의 생산성 등을 바탕으로 수치화 하였다. 식생지수는 백두대간 관리범위 설정에 이용될 수 있을 것이라 사료된다. 식생지수 I의 경우 총 66개의 조사지 중에서 8개 지역 12.1%가 핵심지역에 속하고, 21개 지역 31.8%, 37개 지역 56.1%가 각각 완충지역과 전이지역에 속하는 것으로 나타났다. 식생지수II의 경우 28개 지역 41.9%가 핵심지역에 속하고, 19개 지역 28.8%, 19개 지역 28.8%가 각각 완충지역과 전이지역에 속하는 것으로 나타났다.

건설발생토의 식재용토 재활용을 위한 적합성 평가 (Evaluation of the Recycled Waste Soils from Construction Site for Vegetation Media)

  • 윤용한;김원태;박봉주;김선주;임병옥;손진관
    • 아시안잔디학회지
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    • 제20권1호
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    • pp.41-46
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    • 2006
  • 본 연구는 수도권매립지 주변 건설폐기물 중간처리업체 내에 적재되어 있는 건설발생토의 유해물질 함량과 토양오염도를 측정하여 환경식재기반으로서의 활용 가능성에 대해서 검토하였다. 본 연구에 사용된 건설발생토의 유해물질 함량은 분석항목 모두 지정폐기물에 함유된 유해물질의 기준치 이내로 나타나 환경식재기반으로서의 재활용 가능성이 높은 것으로 나타났다. 토양오염도의 분석에서 토양오염 허용기준을 초과하지 않는 것으로 나타났고, 잔디 생육실험에 있어서도 건설 발생토는 식생토사로서의 활용 가능성이 있는 것으로 나타났다.